Businesses and organizations have special concerns when it comes to their cooling and heating needs. Do you need commercial HVAC services for your Nassau County, NY business or organization, but can’t afford a lot of downtime? Then you’ll be glad to know that T.F. O’Brien is only a phone call away. We’ve been the area’s most trusted name in commercial HVAC since 1934. We have the experience needed to keep you, your employees and your clients comfortable.
Get Started with an Estimate
Call T.F. O'Brien Cooling & Heating at (516) 488-1800 or complete our short form below and a representative will reach out to you.
What do our customers think of us?
The New A/C is Wonderful
Excellent service from beginning to end. The new A/C is wonderful.
Installation was First Rate and Professional
Tom did a great job. Got 5 other estimates: one did not respond, another sent a proposal via email which I could either accept or decline with no questions entertained. We had a special situation and only Tom was able to understand it and figure out a way to do the job. We're very happy with our new Daikin unit-operates exactly like Tom said it would. The installation was first rate and professional as well. Would certainly recommend.
Very Happy with Your Work
Very happy with your work, just very happy I haven't had to use it yet due to cool weather.
Installed as Promised in a Very Timely Fashion
The customer service has been excellent. It's been extremely easy to schedule the consultation, installation and follow-up service. Everything was delivered and installed as promised in a very timely fashion. I've been extremely happy with the level of communication from your company. When I'm ready to have the next phase of my HVAC system installed I'm definitely coming back!
Very pleased to date!
Always a Pleasure
Always a pleasure.
Excellent Job / Excellent Service
Excellent job/excellent service as always. Thank you.
Professional, Courteous, and Likeable
Professional, courteous, and likeable.
We offer complete commercial HVAC services to our Nassau County, NY clients.
The comfort of you, your employees and your clients is always our number one priority. That’s why we offer comprehensive commercial HVAC services to our Nassau County, NY clients, including:
- Commercial Heating Installation & Repair in Nassau County, NY
- Commercial Air Conditioning Installation & Repair in Nassau County, NY
- Commercial Boilers Installation & Repair in Nassau County, NY
- Commercial Rooftop Installation & Repair in Nassau County, NY
- Variable Refrigerant Flow (VRF) – Commercial Ductless in Nassau County, NY